Ventilating system



March 18, 1930. E, s, BUCK El AL 1,750,873

VENTILATING sis'rnm Filed May 10. 1926 A TTORNEY.

Patented Mar. 18, :1930

UNITE STATES PATENT OFFICE EVERETT S. BUCK AND LEE 1B. METTDLER, OF LOSAN GELES, CALIFORNIA VENTILATING SYSTEM 1 Application filed May 10,1926. Serial no. 108,004.

This invention relates to improvements in ventilating apparatus and moreparticularly to apparatus for installation and use in places for publicgatherings, such as theaters, school 5 rooms, churches and passengercoaches.

Efforts to secure comfort in crowded theaters, school rooms, churchesand other places for public gatherings have led to finally acceptedpractice of supplying a vast volume of air which is commonly washed andeither cooled or warmed anddelivering it at scattered points throughouta room or space and then exhausting it to waste. The air quantities thushandled range from thirty (30) to fifty (50) cubic feet per person perminute, although less than a cubic foot per person per minute, isactually breathed, the remainder being necessary for dilution and airmovement, but, because it becomes contaminated and unfitted forbreathing purposes this "air is exhausted, as waste, carrying with itthe positive or negative heat with which it was tempered. This practiceand only by the closest temperature andhumidity regulation,

affords, at best, only average comfort conditions.

provision of means whereby each individual person, as seated in a placefor public gathering, may surround himself inan atmosphere conditionedand controlled to meet his personal needs and desires.

Our improvements consist in the novel construction, arrangement andcombination of parts as hereinafter fully, clearly and conciselydescribed, definitely pointed out in our claims and illustrated by theaccompanying drawing (1 sheet) in which:

Fig. 1 is a diagrammatical floor plan of a place for public gatheringand shows an apparatus for conditioning and delivering air in accordancewith our invention;

Fig. 2 shows in rear elevation a group of seats equipped withcontrollable discharge outlets for air;

Fig. 3 shows in side elevation the group of seats as shown in Fig. 2;

Fig. 4 is an enlarged sectional detail of the discharge nozzle;

Among the objects of our invention is the Figs. 5 and 6 illustrate a'modified formlof a controllable outlet. 1

Referring more specifically to the drawing, 10 designates a room orchamber, whichis temperature-controlled, as by any approved heating orcooling system, not shown.

For the supply of breathing air to the room,

1 we provide an air conditioner 11, Which may be of any approved typeand construction, such as a washer with air tempering means. From thisconditioner 'we provide main ducts 12 having branches'13, which latterlead to the vicinities of fixed'seats, such as the rows of seats 14,shown diagrammatically in F ig; 1. At the discharge end of eachbranchduct we provide a nozzle 15, as best shown in 4, adapted tocontrol both the flow and di-v rection of the breathing air from theconditioner, to the end that the occupant of the seat may providehimself withthe breathing and comfort condition of his individual needand desire. I

As a means of mounting the nozzle 15, we

. utilize the seat supporting standard 16, which bearing 18 within thenozzleand mount therein a manually rotatable barrel 19, havingsubstantially diametrically opposed intake and outlet ports 20 and 21,respectively, and a projecting manipulating handle wheel 22.

To control the volumeof discharging air, we provide a damper such as 23,for closing or grading the opening of the intake port 20.

e contemplate the provision of a nozzle, as recited, for each occupantof each seat, to

r the end that breathing air may be supplied to each individual memberof an audience, according to his needs and desires and this allindependent of the general air tempering of the audience chamber. V

In the form shown in Figs. 5 and 6, we show a discharge outlet in.theform of a register carried at the back of a theaterseat andconnected with an air condition apparatus in substantially the samemanner shown in the preferred'form and which connection in cludes anormally closed valve 30 comprising 7 apedal31 andaspring32. q f In thisform the operatorwvhile. seated the vicinity of the register holdsthevalve open when he desires the benefit of breathing room. "In thisform'of apparatus, the valve 7 air independent .ofg'the.temperediairfofthey;

being normally closed, there is economy in operation in view'of thefaetthat the supply of breathing air is available'only upon "at manualholding of theflow valve open, v ,\Veclaim:" V V 1 .1.'In a devicerofthe olass clescribed, a source ,ofjair supply, a nozzle in oommunic'aition] therewith, said nozzle having a contracted throat portion, avalvelconsisting of a sleeve having diametrically:opposite ports, i saidValve being ,locate 'din said throat poi ,7; tion ofsaid nozzletooontrol the supply of airtherethrough, means for manually operating saidvalve, saidiiozzle having an ex panded terminal portion beyond saidthroat 7 portion, a screen to guard said terminal por- 1 tion locatedatthe most'expanded' portion thereof, and'a swivel support for saidnozzle. v T In combination, a chair having a 1101-. low supporting;standard, a source of air communicating withfsaid-standard', anozzle v-'s vivelably mounted upon said standardand J adapted to oontrol'thehorizontal direotion of air flow, a valve in; said nozzle to control theair supply, means in said valve for controlling the vertical.vdireotionof air flow-. I j -EVERETT SJ BUCK. k

7 W 1 LEE -METTLER;

